66 CALIFORNIA ACADEMY OF SCIENCES. 



15 Uta stansburiana Baird & Girard. BROWN- 

 SHOULDERED LIZARD. 



Uta stansburiana, B. & G., Proc. Acad. Nat. Sci. Phila., VI, 1852, 

 p. 69 (type locality Valley of Great Salt Lake, Utah), and 

 Stansbury's Exped. Gt. Salt Lake, 1853, p. 345,- pi. V, figs. 4-6. 



Uta elegans, YAKROW, Proc. U. S. Nat. Mus., 1882, p. 442 (type 

 locality La Paz, L. C., Mex.). 



Description. Body and head considerably depressed. 

 Snout low, rounded and rather short, with well 

 developed canthus. Nostrils large, opening upward 

 and outward, nearer to end of snout than to orbit. 

 Plates on head large, smooth, and usually more or less 

 convex, interparietal largest. Frontal plate usually 

 divided transversely. Three to five supraoculars en- 

 larged and separated from frontals by one row of gran- 

 ules. Superciliaries long, somewhat projecting laterally, 

 and strongly imbricate. Central subocular very long, 

 narrow, and strongly keeled. Rostral and supralabials 

 very long and low. Other plates of upper surface of 

 head very irregular in size and position. Symphyseal 

 plate rather small, followed by three or four pair of 

 larger smooth plates separated from small infralabials 

 by from one to three series of moderately enlarged sub- 

 labials. Gular region covered with small, smooth, hex- 

 agonal scales, which change gradually into granules on 

 sides of neck, and into larger scales on strong trans- 

 verse gular fold, where they are about the size of those 

 on belly. Edge of gular fold with a series of larger 

 projecting scales. Ear-opening with a strong denticu- 

 lation of three or four pointed scales. Several longi- 

 tudinal dermal folds usually present on sides of body 

 and neck. Back covered with 

 keeled scales of nearly uni- 

 form size, becoming gradually 

 granular on neck and sides. Largest scales on tail, 



